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lib: utils/timer: Allow separate base addresses for MTIME and MTIMECMP

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We extend the ACLINT library to support separate base addresses
for MTIME and MTIMECMP registers.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Atish Patra <atish.patra@wdc.com>
This commit is contained in:
Anup Patel
2021-07-23 14:09:43 +05:30
committed by Anup Patel
parent 47a47654e8
commit e0d1b9db8a
8 changed files with 114 additions and 41 deletions
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13
platform/fpga/openpiton/platform.c
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@@ -49,8 +49,12 @@ static struct aclint_mswi_data mswi = {
};
static struct aclint_mtimer_data mtimer = {
.addr = OPENPITON_DEFAULT_ACLINT_MTIMER_ADDR,
.size = ACLINT_MTIMER_SIZE,
.mtime_addr = OPENPITON_DEFAULT_ACLINT_MTIMER_ADDR +
ACLINT_DEFAULT_MTIME_OFFSET,
.mtime_size = ACLINT_DEFAULT_MTIME_SIZE,
.mtimecmp_addr = OPENPITON_DEFAULT_ACLINT_MTIMER_ADDR +
ACLINT_DEFAULT_MTIMECMP_OFFSET,
.mtimecmp_size = ACLINT_DEFAULT_MTIMECMP_SIZE,
.first_hartid = 0,
.hart_count = OPENPITON_DEFAULT_HART_COUNT,
.has_64bit_mmio = TRUE,
@@ -82,7 +86,10 @@ static int openpiton_early_init(bool cold_boot)
rc = fdt_parse_compat_addr(fdt, &clint_addr, "riscv,clint0");
if (!rc) {
mswi.addr = clint_addr;
mtimer.addr = clint_addr + CLINT_MTIMER_OFFSET;
mtimer.mtime_addr = clint_addr + CLINT_MTIMER_OFFSET +
ACLINT_DEFAULT_MTIME_OFFSET;
mtimer.mtimecmp_addr = clint_addr + CLINT_MTIMER_OFFSET +
ACLINT_DEFAULT_MTIMECMP_OFFSET;
}
return 0;